Patents by Inventor Premduth Vidyanandan

Premduth Vidyanandan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11443018
    Abstract: An example hardware accelerator for a computer system includes a programmable device and further includes kernel logic configured in a programmable fabric of the programmable device, and an intellectual property (IP) checker circuit in the kernel logic. The IP checker circuit is configured to obtain a device identifier (ID) of the programmable device and a signed whitelist, the signed whitelist including a list of device IDs and a signature, verify the signature of the signed whitelist, compare the device ID against the list of device IDs, and selectively assert or deassert an enable of the kernel logic in response to presence or absence, respectively, of the device ID in the list of device IDs and verification of the signature.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 13, 2022
    Assignee: XILINX, INC.
    Inventors: Brian S. Martin, Premduth Vidyanandan, Mark B. Carson, Neil Watson, Gary J. McClintock
  • Patent number: 11294992
    Abstract: An example hardware accelerator for a computer system includes a programmable device and further includes kernel logic configured in a first programmable fabric of the programmable device, a shell circuit configured in a second programmable fabric of the programmable device, the shell circuit configured to provide an interface between a computer system and the kernel logic, and an intellectual property (IP) checker circuit in the kernel logic The IP checker circuit is configured to obtain a device identifier (ID) from the first programmable fabric and a signed whitelist, the signed whitelist including a list of device IDs and a signature, verify the signature of the signed whitelist, compare the device ID against the list of device IDs, and selectively assert or deassert an enable of the kernel logic in response to presence or absence, respectively, of the device ID in the list of device IDs and verification of the signature.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: April 5, 2022
    Assignee: XILINX, INC.
    Inventors: Brian S. Martin, Premduth Vidyanandan, Mark B. Carson, Neil Watson, Gary J. McClintock
  • Patent number: 11232219
    Abstract: Removing protections on a session-key protected design include receiving a double encrypted vendor private key and an encrypted session key. The double encrypted vendor private key is decrypted into a single encrypted vendor-private key using a user private key, and the single encrypted vendor-private key is decrypted into a vendor private key using a vendor pass phrase. The encrypted session key is decrypted into a session key using the vendor private key, and the session-key protected design is decrypted into a plain design using the session key.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 25, 2022
    Assignee: XILINX, INC.
    Inventors: Bin Ochotta, Alec J. Wong, Nghia Do, Dennis McCrohan, David A. Knol, Premduth Vidyanandan, Satyam Jani
  • Publication number: 20200293636
    Abstract: An example hardware accelerator for a computer system includes a programmable device and further includes kernel logic configured in a first programmable fabric of the programmable device, a shell circuit configured in a second programmable fabric of the programmable device, the shell circuit configured to provide an interface between a computer system and the kernel logic, and an intellectual property (IP) checker circuit in the kernel logic The IP checker circuit is configured to obtain a device identifier (ID) from the first programmable fabric and a signed whitelist, the signed whitelist including a list of device IDs and a signature, verify the signature of the signed whitelist, compare the device ID against the list of device IDs, and selectively assert or deassert an enable of the kernel logic in response to presence or absence, respectively, of the device ID in the list of device IDs and verification of the signature.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 17, 2020
    Applicant: Xilinx, Inc.
    Inventors: Brian S. Martin, Premduth Vidyanandan, Mark B. Carson, Neil Watson, Gary J. McClintock
  • Publication number: 20200293635
    Abstract: An example hardware accelerator for a computer system includes a programmable device and further includes kernel logic configured in a programmable fabric of the programmable device, and an intellectual property (IP) checker circuit in the kernel logic. The IP checker circuit is configured to obtain a device identifier (ID) of the programmable device and a signed whitelist, the signed whitelist including a list of device IDs and a signature, verify the signature of the signed whitelist, compare the device ID against the list of device IDs, and selectively assert or deassert an enable of the kernel logic in response to presence or absence, respectively, of the device ID in the list of device IDs and verification of the signature.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 17, 2020
    Applicant: Xilinx, Inc.
    Inventors: Brian S. Martin, Premduth Vidyanandan, Mark B. Carson, Neil Watson, Gary J. McClintock
  • Patent number: 8196075
    Abstract: A process is provided for creating an input/output (I/O) model. A set of logical I/O pins of an unplaced and unrouted circuit design is determined. Pin placement is determined for one or more of the logical I/O pins on device pins of a target device. An I/O pin profile for each of the logical I/O pins is determined. A plurality of I/O pin models available on the target device are input and an I/O pin model is selected from the plurality of I/O pin models for each of the logical I/O pins according to the respective I/O pin profiles. An I/O model is generated including each selected I/O pin model within the I/O model. The generated I/O model is stored in a processor readable storage medium.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: June 5, 2012
    Assignee: Xilinx, Inc.
    Inventors: Philippe Garrault, Jennifer D. Baldwin, Richard J. LeBlanc, Premduth Vidyanandan, Kenneth J. Stickney, Jr., Carrie L. Kisiday